The Distributed Feedback Semiconductor Laser (SDFB), developed during 1970s still powers the worldwide optical fibre network. The SDFB Laser's thin unparallelled spectral purity ensured its unusual longevity in optical communications. But, ts spectral purity no longer satisfies the present demand for bandwidth. The crystalline layers of material (III-V Semiconductor -strong … [Read more...] about Superfast internet promised by new Laser technology